rac维护工具集系列（一）--节点层
1. 节点层

查询节点名称，ID，网卡名称，vip
[oracle@rac1 ~]$ olsnodes -h
Usage: olsnodes [-n] [-p] [-i] [ | -l] [-g] [-v]
        where
                -n print node number with the node name
                -p print private interconnect name with the node name
                -i print virtual IP name with the node name
                print information for the specified node
                -l print information for the local node
                -g turn on logging
                -v run in verbose mode
[oracle@rac1 bin]$ cd $ORA_CRS_HOME/bin
[oracle@rac1 bin]$ olsnodes -n -p -i
rac1    1       rac1-priv       rac1-vip
rac2    2       rac2-priv       rac2-vip